acidic condition

1-Aminohydantoin hydrochloride 是一种呋喃妥因在动物组织中的主要代谢物。它与组织蛋白共价结合，在微酸性条件下从组织中释放出来，与 2-硝基苯甲醛衍生形成 AHD 的硝基苯基衍生物可被检测。它可作为测定肉、奶等兽药残留的测定指标。

Finafloxacin, a fluoroquinolone antimicrobial agent from a new 8-cyano subclass, is most effective in slightly acidic environments (pH 5.0-6.0), a condition where other fluoroquinolones typically reduce in activity. It selectively targets bacterial type II topoisomerases, such as DNA gyrase and DNA topoisomerase IV, making it suitable for treating serious bacterial infections particularly in acidic contexts, including urinary tract infections (UTIs) and Helicobacter pylori infections.